PyWeakref_GetRef() returns 1 on success

See upstream change:
python/cpython@ee46cb6

Author: vstinner

pythoncapi_compat.h

@@ -603,7 +603,7 @@ PyWeakref_GetRef(PyObject *ref, PyObject **pobj)
         return 0;
     }
     *pobj = Py_NewRef(obj);
-    return 0;
+    return (*pobj != NULL);
 }
 #endif
 

tests/test_pythoncapi_compat_cext.c

@@ -710,7 +710,7 @@ test_weakref(PyObject *Py_UNUSED(module), PyObject *Py_UNUSED(args))
 
     // test PyWeakref_GetRef(), reference is alive
     PyObject *ref = Py_True;  // marker to check that value was set
-    assert(PyWeakref_GetRef(weakref, &ref) == 0);
+    assert(PyWeakref_GetRef(weakref, &ref) == 1);
     assert(ref == obj);
     assert(Py_REFCNT(obj) == (refcnt + 1));
     Py_DECREF(ref);